Jerry Seinfeld, the master of his domain — and a priceless Porsche — told The Post on Tuesday that he watched in horror as a driver dinged his prized wheels in the Hamptons.

The car-crazy comedian was in Amagansett on Monday when he spotted a white BMW backing up to park in front of his 1973 Porsche 911 Carrera RSR.

“I was sitting on a bench, having coffee with a friend,’’ said Seinfeld, 60, who was with Argentine polo player Nacho Figueras at the time. “My car was parked directly across the street.

“We then watched as a middle-aged woman in a new, white BMW sedan pulled in front of my car, put her car in reverse and drove straight back into my car, smashing and damaging it.

Jerry SeinfeldPhoto: INF

“We could hear the sound of metal crunching — rare, classic, expensive, vintage metal, by the way — from across the street. A sickening sound to a car person,’’ Seinfeld said.

“And even though I’m sure I deserved this, because of who I am and that I have this amazing car, I was furious. I ran across the street, out of my mind, and yelled at her, ‘You just crashed into my car!’

“Of course, her reply was not, ‘Oh, my God, I’m so sorry,’ but, ‘Well, I couldn’t see it.’ She didn’t seem to understand why I would be upset or how this was in any way her fault,” Seinfeld said.

“She drove off. She did offer to give me her information, but the idea of having her in my life for one more second was intolerable.

“I went home and put my head under the covers.

“And if you’ve ever spent a summer in the Hamptons, all of this makes perfect sense.

“My friend, who is Argentinian, said to me, ‘In life, sometimes we all need a little pinch.’

“He’s right, she’s right, everyone’s right.

“I will be much more careful in the future.

“But that woman is still an idiot.”

Only 49 of the 911 RSRs were built in 1973, and some have gone for more than $1 million at auction.